| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an indwelling intravenous cannula which can block the reverse flow of blood, etc. <P>SOLUTION: The indwelling intravenous cannula comprising connecting one end of an outer needle across a caulking cap to one end of an outer needle hub is provided with a backflow preventive valve for shutting off the liquid flow heading toward the outer needle hub side from the outer needle side at a coupling between the outer needle hub and the outer needle. <P>COPYRIGHT: (C)2003,JPO |
